Supply device, and method for supplying band-like member

Abstract

A feeding device ( 10 ) comprises: a support frame ( 12 ); an annular-shaped rotary frame ( 13 ); paired feeding rollers ( 15, 161 ) for nipping a strip-shaped member therebetween; a rotating motor (M 1 ) for rotating the rotating frame ( 13 ); a feeding motor (M 2 ) for rotating at least one ( 15 ) of the feeding rollers; and a driving force transmission mechanism ( 17 ) comprising a rotatable member relatively rotatable with respect to the rotating frame ( 13 ). The rotating frame ( 13 ) is rotated by driving of the rotating motor (M 1 ) through a roller or a gear, and the at least one feeding roller ( 15 ) is rotated by the feeding motor (M 2 ) through the driving force transmission mechanism ( 17 ), so that the strip-shaped member ( 100 ) is fed out in the form of a given helical configuration.

What is claimed is: 
     
       1. A feeding device for feeding out a strip-shaped member in the form of a helical configuration, comprising:
 a support frame; 
 an annular-shaped rotary frame located on the inside of an inner periphery of the support frame and supported in a rotatable manner; 
 paired feeding rollers supported with respect to the rotary frame and configured to nip the strip-shaped member therebetween; 
 a rotating motor installed to the support frame to rotate the rotary frame; 
 a feeding motor installed to the support frame to rotate at least one of the feeding rollers; 
 and a driving force transmission mechanism comprising an endless-shaped rotatable member wound around an outer peripheral surface of the rotary frame and relatively rotatable with respect to the rotary frame in a circumferentially-movable manner, 
 wherein 
 the feeding device is configured such that the rotary frame is rotated by driving of the rotating motor through a roller or a gear, and at least one of the feeding rollers is rotated by driving of the feeding motor through the driving force transmission mechanism. 
 
     
     
       2. The feeding device as defined in  claim 1 , wherein the rotary frame is comprised of a plurality of segments which are separably coupled together, and the at least one feeding roller is detachably coupled to the rotary frame, whereby the strip-shaped member can be set in a nipped state. 
     
     
       3. The feeding device as defined in  claim 1 , wherein the rotary frame is provided with a guide for guiding the strip-shaped member to the feeding rollers. 
     
     
       4. The feeding device as defined in  claim 1 , wherein rotation of the feeding motor is transmitted to the rotatable member through at least one selected from the group consisting of a sprocket, a gear, a roller and a belt, to cause the rotatable member to be circulatingly moved along the rotary frame. 
     
     
       5. The feeding device as defined in  claim 1 , wherein rotation of the rotatable member is transmitted to the at least one feeding roller through at least one selected from the group consisting of a sprocket, a gear, a roller and a belt, to cause the at least one feeding roller to be rotated. 
     
     
       6. The feeding device as defined in  claim 1 , wherein the rotatable member is a chain or a belt. 
     
     
       7. The feeding device as defined in  claim 1 , wherein the driving force transmission mechanism comprises: a drive sprocket configured to be rotated by the feeding motor; the rotatable member, wherein the rotatable member is configured to be circulatingly moved along the rotary frame according to rotation of the drive sprocket; a driven sprocket configured to be rotated by the rotatable member; a drive bevel gear configured to be rotated according to rotation of the driven sprocket; a driven bevel gear meshed with the drive bevel gear; and a rotary-shaft coupling configured to transmit rotation of the driven bevel gear to the at least one feeding roller. 
     
     
       8. The feeding device as defined in  claim 1 , which further comprises a mount provided below the support frame, the mount having a traveling wheel. 
     
     
       9. The feeding device as defined in  claim 1 , which further comprises a mount provided below the support frame, wherein the support frame is supported with respect to the mount in a swingable manner about a horizontal shaft. 
     
     
       10. The feeding device as defined in  claim 1 , wherein the endless-shaped rotatable member is co-centric with the rotary frame. 
     
     
       11. A method of feeding, to a pipe forming device, a strip-shaped member to be formed in a rehabilitation pipe, comprising the steps of:
 preparing a plurality of strip-shaped member feeding devices each comprising: a support frame; an annular-shaped rotary frame located on the side of an inner periphery of the support frame and supported in a rotatable manner; paired feeding rollers supported with respect to the rotary frame and configured to nip the strip-shaped member therebetween; a rotating motor installed to the support frame to rotate the rotary frame; a feeding motor installed to the support frame to rotate at least one of the feeding rollers; and a driving force transmission mechanism comprising an endless-shaped rotatable member wound around an outer peripheral surface of the rotary frame and relatively rotatable with respect to the rotary frame in a circumferentially-movable manner, wherein the rotary frame is comprised of a plurality of segments which are separably coupled together, and the at least one feeding roller is detachably coupled to the rotary frame, whereby the strip-shaped member can be set in a nipped state; 
 installing the feeding devices in a rehabilitation pipe at a plurality of positions at intervals; 
 penetratingly inserting the strip-shaped member in the rotary frame after releasing the coupling of the segments thereof; 
 detaching the at least one feeding roller and nipping the strip-shaped member between the paired feeding rollers; 
 attaching the feeding rollers to one of the separated segments of the rotary frame and coupling the separated segments of the rotary frame together to form an annular shape; and 
 feeding out the strip-shaped member from one of the feeding devices toward a forward one of the remaining feeding devices or toward the pipe forming device, in the form of a helical configuration. 
 
     
     
       12. The method as defined in  claim 11 , wherein the endless-shaped rotatable member is co-centric with the rotary frame.